Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 1 Jan 1990 | Calderdale | 1 | 1 | Serious |
| Tue 2 Jan 1990 | Calderdale | 2 | 2 | Slight |
| Wed 10 Jan 1990 | Calderdale | 2 | 1 | Slight |
| Fri 12 Jan 1990 | Burnley | 2 | 1 | Slight |
| Thu 18 Jan 1990 | Calderdale | 2 | 3 | Slight |
| Sat 20 Jan 1990 | Calderdale | 1 | 1 | Slight |
| Sat 20 Jan 1990 | Calderdale | 2 | 2 | Serious |
| Tue 23 Jan 1990 | Burnley | 1 | 1 | Slight |
| Fri 26 Jan 1990 | Calderdale | 2 | 1 | Slight |
| Sat 27 Jan 1990 | Calderdale | 1 | 1 | Slight |
| Wed 31 Jan 1990 | Calderdale | 1 | 1 | Slight |
| Sat 3 Feb 1990 | Calderdale | 1 | 1 | Serious |
| Wed 7 Feb 1990 | Calderdale | 2 | 1 | Slight |
| Fri 9 Feb 1990 | Calderdale | 2 | 1 | Serious |
| Fri 9 Feb 1990 | Calderdale | 1 | 1 | Serious |
| Mon 12 Feb 1990 | Calderdale | 3 | 1 | Slight |
| Tue 13 Feb 1990 | Calderdale | 1 | 1 | Slight |
| Wed 14 Feb 1990 | Calderdale | 1 | 1 | Slight |
| Fri 16 Feb 1990 | Calderdale | 3 | 1 | Slight |
| Mon 19 Feb 1990 | Calderdale | 2 | 1 | Slight |
| Wed 21 Feb 1990 | Calderdale | 1 | 1 | Serious |
| Sun 25 Feb 1990 | Calderdale | 2 | 1 | Slight |
| Thu 1 Mar 1990 | Calderdale | 2 | 1 | Slight |
| Sun 4 Mar 1990 | Calderdale | 2 | 2 | Slight |
| Wed 7 Mar 1990 | Calderdale | 1 | 1 | Slight |
| Fri 9 Mar 1990 | Calderdale | 2 | 1 | Slight |
| Fri 9 Mar 1990 | Calderdale | 1 | 1 | Slight |
| Mon 12 Mar 1990 | Calderdale | 2 | 1 | Slight |
| Mon 19 Mar 1990 | Calderdale | 4 | 1 | Slight |
| Tue 20 Mar 1990 | Calderdale | 2 | 1 | Slight |
| Wed 21 Mar 1990 | Calderdale | 2 | 1 | Serious |
| Thu 22 Mar 1990 | Burnley | 1 | 1 | Slight |
| Sat 24 Mar 1990 | Burnley | 2 | 1 | Slight |
| Tue 27 Mar 1990 | Calderdale | 1 | 1 | Serious |
| Sat 31 Mar 1990 | Calderdale | 2 | 1 | Slight |
| Tue 3 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Wed 4 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Wed 4 Apr 1990 | Calderdale | 1 | 1 | Slight |
| Thu 5 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Sat 7 Apr 1990 | Calderdale | 2 | 1 | Serious |
| Thu 12 Apr 1990 | Calderdale | 1 | 1 | Slight |
| Sat 14 Apr 1990 | Burnley | 2 | 1 | Serious |
| Mon 16 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Thu 19 Apr 1990 | Calderdale | 1 | 1 | Slight |
| Thu 19 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Fri 20 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Sat 21 Apr 1990 | Burnley | 1 | 1 | Slight |
| Tue 24 Apr 1990 | Calderdale | 1 | 1 | Slight |
| Tue 24 Apr 1990 | Calderdale | 2 | 1 | Slight |
| Thu 26 Apr 1990 | Burnley | 1 | 3 | Fatal |
| Thu 26 Apr 1990 | Calderdale | 2 | 5 | Slight |
| Fri 27 Apr 1990 | Burnley | 2 | 1 | Fatal |
| Mon 30 Apr 1990 | Calderdale | 1 | 1 | Slight |
| Tue 1 May 1990 | Calderdale | 1 | 1 | Slight |
| Sat 5 May 1990 | Calderdale | 2 | 1 | Slight |
| Sat 5 May 1990 | Calderdale | 2 | 1 | Slight |
| Mon 7 May 1990 | Calderdale | 1 | 1 | Slight |
| Wed 9 May 1990 | Calderdale | 2 | 1 | Slight |
| Thu 10 May 1990 | Calderdale | 2 | 1 | Slight |
| Thu 17 May 1990 | Calderdale | 2 | 1 | Serious |
| Sun 20 May 1990 | Calderdale | 2 | 4 | Serious |
| Sun 20 May 1990 | Calderdale | 1 | 1 | Slight |
| Tue 22 May 1990 | Calderdale | 2 | 1 | Slight |
| Tue 22 May 1990 | Calderdale | 2 | 1 | Slight |
| Tue 29 May 1990 | Calderdale | 3 | 1 | Serious |
| Thu 31 May 1990 | Calderdale | 2 | 1 | Slight |
| Thu 31 May 1990 | Calderdale | 1 | 1 | Slight |
| Fri 1 Jun 1990 | Calderdale | 1 | 1 | Slight |
| Sat 2 Jun 1990 | Calderdale | 2 | 1 | Serious |
| Tue 5 Jun 1990 | Calderdale | 2 | 1 | Slight |
| Wed 6 Jun 1990 | Calderdale | 1 | 1 | Slight |
| Sun 10 Jun 1990 | Calderdale | 3 | 2 | Slight |
| Mon 18 Jun 1990 | Burnley | 2 | 1 | Slight |
| Mon 18 Jun 1990 | Calderdale | 2 | 2 | Slight |
| Sat 30 Jun 1990 | Burnley | 2 | 1 | Slight |
| Mon 2 Jul 1990 | Calderdale | 3 | 1 | Slight |
| Wed 11 Jul 1990 | Burnley | 2 | 1 | Slight |
| Thu 12 Jul 1990 | Calderdale | 2 | 1 | Slight |
| Wed 18 Jul 1990 | Calderdale | 2 | 1 | Slight |
| Mon 23 Jul 1990 | Calderdale | 2 | 1 | Slight |
| Wed 25 Jul 1990 | Calderdale | 2 | 1 | Slight |
| Wed 25 Jul 1990 | Burnley | 1 | 2 | Fatal |
| Thu 26 Jul 1990 | Burnley | 2 | 2 | Serious |
| Fri 27 Jul 1990 | Calderdale | 3 | 1 | Slight |
| Tue 31 Jul 1990 | Calderdale | 2 | 1 | Slight |
| Sun 5 Aug 1990 | Calderdale | 1 | 1 | Slight |
| Fri 10 Aug 1990 | Calderdale | 2 | 5 | Serious |
| Sun 12 Aug 1990 | Burnley | 2 | 1 | Slight |
| Mon 13 Aug 1990 | Calderdale | 1 | 1 | Slight |
| Sun 19 Aug 1990 | Calderdale | 2 | 1 | Slight |
| Mon 20 Aug 1990 | Calderdale | 3 | 1 | Slight |
| Tue 28 Aug 1990 | Calderdale | 2 | 2 | Slight |
| Tue 28 Aug 1990 | Calderdale | 1 | 2 | Serious |
| Tue 28 Aug 1990 | Calderdale | 1 | 1 | Serious |
| Sat 1 Sep 1990 | Calderdale | 2 | 1 | Serious |
| Sat 1 Sep 1990 | Calderdale | 1 | 1 | Slight |
| Mon 3 Sep 1990 | Calderdale | 1 | 1 | Slight |
| Tue 4 Sep 1990 | Calderdale | 1 | 1 | Slight |
| Sat 8 Sep 1990 | Calderdale | 1 | 1 | Slight |
| Mon 10 Sep 1990 | Calderdale | 2 | 1 | Serious |
| Sat 15 Sep 1990 | Burnley | 2 | 1 | Slight |
| Tue 18 Sep 1990 | Burnley | 2 | 1 | Slight |
| Wed 19 Sep 1990 | Calderdale | 2 | 1 | Slight |
| Wed 19 Sep 1990 | Calderdale | 1 | 1 | Slight |
| Thu 20 Sep 1990 | Burnley | 2 | 1 | Slight |
| Mon 24 Sep 1990 | Calderdale | 2 | 1 | Slight |
| Tue 2 Oct 1990 | Calderdale | 2 | 1 | Slight |
| Thu 4 Oct 1990 | Burnley | 2 | 2 | Slight |
| Fri 5 Oct 1990 | Calderdale | 2 | 1 | Slight |
| Sat 6 Oct 1990 | Calderdale | 2 | 1 | Slight |
| Sat 6 Oct 1990 | Calderdale | 1 | 1 | Slight |
| Sat 6 Oct 1990 | Burnley | 1 | 1 | Slight |
| Tue 9 Oct 1990 | Calderdale | 3 | 1 | Slight |
| Tue 9 Oct 1990 | Burnley | 1 | 1 | Slight |
| Thu 18 Oct 1990 | Calderdale | 1 | 1 | Slight |
| Fri 26 Oct 1990 | Burnley | 2 | 1 | Slight |
| Wed 31 Oct 1990 | Calderdale | 2 | 1 | Slight |
| Sat 3 Nov 1990 | Calderdale | 2 | 1 | Slight |
| Tue 6 Nov 1990 | Burnley | 2 | 2 | Slight |
| Mon 12 Nov 1990 | Burnley | 1 | 2 | Slight |
| Wed 14 Nov 1990 | Calderdale | 1 | 1 | Slight |
| Thu 15 Nov 1990 | Calderdale | 3 | 3 | Slight |
| Thu 15 Nov 1990 | Calderdale | 3 | 1 | Serious |
| Thu 15 Nov 1990 | Calderdale | 3 | 1 | Slight |
| Thu 22 Nov 1990 | Burnley | 2 | 3 | Slight |
| Sat 24 Nov 1990 | Calderdale | 1 | 1 | Serious |
| Wed 28 Nov 1990 | Calderdale | 1 | 1 | Slight |
| Mon 3 Dec 1990 | Burnley | 4 | 3 | Serious |
| Mon 10 Dec 1990 | Calderdale | 1 | 1 | Slight |
| Sun 16 Dec 1990 | Burnley | 2 | 1 | Slight |
| Mon 17 Dec 1990 | Calderdale | 2 | 1 | Slight |
| Wed 19 Dec 1990 | Calderdale | 2 | 1 | Slight |
| Fri 28 Dec 1990 | Calderdale | 2 | 1 | Slight |